Ultrasonic device
AssigneeSeiko Epson Corporation
InventorsMasayoshi Yamada, Hikaru Iwai, Shigeaki Muramatsu, Toshiya Okada
Life of this patent
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Abstract
An ultrasonic device includes an ultrasonic element configured to perform at least one of transmission of an ultrasonic wave along a first axis and reception of the ultrasonic wave input along the first axis, and a protective member provided on the first axis to cover the ultrasonic element. The protective member has a first surface provided with at least one hole through which the ultrasonic wave travelling along the first axis passes, and a second surface intersecting with the first surface and provided with a first opening through which foreign matter entering from the at least one hole is discharged.
Claims13
An ultrasonic device, comprising:
- an ultrasonic element configured to perform at least one of transmission of an ultrasonic wave along a first axis or reception of the ultrasonic wave along the first axis;
- and
- a protective member provided on the first axis to cover the ultrasonic element, wherein
- the protective member has:
- a first surface provided with at least one hole through which the ultrasonic wave travelling along the first axis passes, and
- a second surface intersecting with the first surface,
- the second surface is provided with a first opening through which foreign matter entering from the at least one hole is discharged,
- the protective member further has a third surface intersecting with the first surface,
- the third surface faces the second surface,
- the ultrasonic element is between the third surface and the second surface, and
- the third surface is provided with a second opening through which the foreign matter entering from the at least one hole is discharged.
Dependencies are inferred from the claim text.